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Annalen der Physik

Counting and entangling Planck's quanta with atoms in a box

S. Haroche, M. Brune, J. M. Raimond

Published Feb 1, 2001• 0 citations
Publisher

Abstract

Abstract We summarize experiments at Ecole Normale Supérieure on entanglement, quantum logic, quantum measurement and decoherence performed with photons and atoms in cavities.
DOI
10.1002/andp.200151301-204

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The counter-intuitive aspects of quantum physics have been illustrated for some time by thought experiments, from Einstein's photon box to Schrödinger's cat. These experiments have now become real, with single particles — electrons, atoms or photons — directly unveiling the weird features of the quantum. State superpositions, entanglement and complementarity define a novel quantum logic that can be harnessed for information processing, raising great hopes for applications. This book describes a class of such thought experiments made real. Juggling with atoms and photons confined in cavities, ions or cold atoms in traps, provides an incentive to shed a new light on the basic concepts of quantum physics. Measurement processes and decoherence at the quantum-classical boundary are highlighted.